DR. MARCIA MARIE RENTZ MD
NPI 1366479529
Anesthesiology in Sarasota, FL
About Dr. Marcia Marie Rentz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARCIA MARIE RENTZ MD (NPI 1366479529) is an individual anesthesiology provider in Sarasota, Florida, licensed in Florida (ME 64925) and active in the NPI registry since June 2006. She is enrolled in Medicare PECOS and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (1989).
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Marcia Marie Rentz Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
4Medicare enrollment records show Marcia Rentz reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Sarasota, FL 34232
- Reassigned Medicare billing, Florida enrollment
- Medicare enrollment name: Spartan Anesthesia Associates P.A
- 53 clinicians in this Medicare group
Lakeland, FL 33805
- Reassigned Medicare billing, Florida enrollment
- 8 clinicians in this Medicare group
Naples, FL 34119
- Reassigned Medicare billing, Florida enrollment
- 767 clinicians in this Medicare group
Maitland, FL 32751
- Reassigned Medicare billing, Florida enrollment
- 2,356 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SARASOTA, FL 34233
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Marcia Rentz's NPI number?
The NPI number for Marcia Rentz is 1366479529. It was assigned to this individual provider in the NPPES registry on June 26, 2006.
Where is Marcia Rentz located?
Marcia Rentz practices at 5741 Bee Ridge Rd Ste 100, Sarasota, FL 34233. The listed phone number is (941) 724-7000.
What is Marcia Rentz's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Marcia Rentz enrolled in Medicare?
Yes. Marcia Rentz is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Marcia Rentz's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marcia Rentz reassigns Medicare benefits to 4 organizations: Spartan Anesthesia Associates PA (Sarasota, FL), John D. Woody, MD, PA (Lakeland, FL), Capital Anesthesia Solutions Of Florida II, LLC (Naples, FL) and Us Anesthesia Partners Of Florida Inc. (Maitland, FL). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Marcia Rentz's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Marcia Rentz was last updated on October 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 24 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Dr. Marcia Marie Rentz, MD · NPI 1366479529
Anesthesiology physician in Sarasota, Florida. Individual provider, active in the CMS NPPES registry since June 26, 2006.
## Identity
- **NPI:** 1366479529 (Entity type: Individual)
- **Enumerated:** June 26, 2006
- **Primary specialty:** Anesthesiology · taxonomy 207L00000X
- **State license:** ME 64925 (Florida)
- **Sole proprietor:** No
## Practice location
- **Address:** 5741 BEE RIDGE RD STE 100, Sarasota, FL 34233-5060
- **Phone:** (941) 724-7000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Spartan Anesthesia Associates PA (NPI 1710975636, Sarasota, FL); John D. Woody, MD, PA (NPI 1063465524, Lakeland, FL); Capital Anesthesia Solutions Of Florida II, LLC (NPI 1891318481, Naples, FL); Us Anesthesia Partners Of Florida Inc. (NPI 1518910520, Maitland, FL) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Kansas School Of Med, class of 1989
## Record status
- **NPPES last updated:** October 6, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1366479529) · Data from the CMS NPPES public registry.